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answered Orbifold with discrete torsion
Oct
28
comment Gauge theory for mathematicians?
Which page 4 do you mean? Abelian curvatures are closed, otherwise the evaluation of the curvature in a characteristic polynomial is closed.
Oct
27
comment Gauge theory for mathematicians?
Please don't edit away the link to the pdf (dl.dropboxusercontent.com/u/12630719/dcct.pdf). It's more comprehensive. I will update the arXiv version soon.
Oct
27
revised Gauge theory for mathematicians?
added 16 characters in body
Oct
27
answered Gauge theory for mathematicians?
Oct
22
answered Why gauge theories have such a success?
Oct
22
answered Examples of non-linear field symmetries?
Oct
22
comment Field theory where fields are differential forms, other than electromagnetism
Yup. ncatlab.org/nlab/show/self-dual+higher+gauge+theory
Oct
21
answered Why does the Palatini formalism of GR work?
Oct
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answered Field theory where fields are differential forms, other than electromagnetism
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comment What is the algebraic property that corresponds to a topological term?
David Bar Moshe's answer is quite excellent. For more along these lines, I am writing a series of expositional articles here: physicsforums.com/insights/…
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comment Branes wrapping curves in M-theory. What does it mean?
Hard to tell if the question is after the basic concept or some subtleties of it. Let's first check if the basic concept is clear: a brane configuration of shape some manifold Σ inside a target spacetime X is a suitbaly well behaved map Σ→X. One says that such a configuration wraps cycles in X if it represents the corresponding element in the homology group of X. For instance if Σ=T^2and X=Y×T^2 then the brane wraps that torus surface if the embedding map is the identity onto that torus over some point of Y.